Microsoft Brokering File System Privilege Elevation Vulnerability

A double free vulnerability has been identified in the Microsoft Brokering File System, allowing an authorized attacker to locally elevate privileges. This vulnerability affects several versions of Windows 11 and Windows Server 2022 and 2025.

Impact

Exploitation of this vulnerability could lead to unauthorized privilege escalation, allowing an attacker to gain SYSTEM privileges.

Remediation

Users can apply the security updates provided in the Microsoft Update Catalog. Specific update details can be found in the Microsoft Knowledge Base articles KB5062552 and KB5062570.